science end of year Flashcards
what is an organ
an individual living thing
what is a characteristic chemical reaction all living things do
respiration
what is the word for living things responding to their environment
sensitivity
what words describe living things getting substance from “food and drinks”
nutrition
what are the seven characteristic
movement, respiration, sensitivity,growth, reproduction,excretion and nutrition
what are living things made of
all living things are made of cells
what can we use to observe cells
microscope
what is bigger an atom or cell
cells are bigger than a atom
nucleus
controls the activities of the cell
cell membarne
controls which dissolved substance go in and out of cell
mitrochondria
where respiration happens
cytoplasmco
contains dissolved nutrients and where a most chemical reaction happen
what do we call the smaller structure cells are made of
ceb-cellular structures
cell wall
streagnghthne the cell
vacuole
contains cell spa
animal cell
mitochondria,nucleus ,cytoplasm ,cell membrane
plant cell
cell wall chroloplast vacuole mitochodria nucleus cytoplasm cell membrane
small struction alive
cell
eye piece lens
x10
objective lens
x4 x10 x40
what is sub cellular structure made from
cells are made from a biological molecule
small to largest
atom, biological molecule, sub-cellular structure, cell
what is the equation for the total magnification of a microscope
total magnification = eye piece lens x objective lens
is there just one type of animal cell?
no, there is many types of animal cell
are cells the same size and shapes
it’s shape size and structure helps it carry out a particular structure
why is the cell membrane described as being partially preamble
lets some substance pass
what is variation
small different between members of a species
what does genome mean
all the genetic information in an organism
which characteristics can be inherited
characteristic caused by our genetic information
what chemical substance carries an organism genome
DNA
what is a living tissue
a group of cells working together
why do cells need oxygen and glucose
to transfer energy through respirationwhat
what is an organ
a group of tissues working together to carry out a function
why do plants need water and carbon dioxide
for photosynthesis reaction that produces glucose for plant
plant root function
absorbs plants and minrels
plant stem function
holds leaves up right
